Feature:1. WEAR RESISTANT MATERIALS: Made of excellent brass, these bushing guides are designed for long term use and superior durability to resist wear and tear during prolonged woodworking2. SCIENTIFIC DESIGN: The bushing brass router template bushing guide kit is simple and scientific in design to improve woodworking accuracy, consistency and durability3. HIGH ACCURACY: These brass bushed guides are designed for mounting routers with cable type bases, ensuring accuracy and stability, resulting in improved overall smoothness and efficiency for woodworking tasks4. MORE SIZE GUIDE BUSHING: This brass bushing router template guide bushing is equipped with eight kinds of guide bushing size, range of 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 24mm, 30mm5. WITH ACCESSORIES: Brass router template guides set with locking nut, adapter, storage box, this variety can meet the needs of different woodworking projectsSpecification:Item Type: Brass Router Template Guides SetMaterial: BrassSpecifications: 10mm Inner Diameter: 1/4in, Outer Diameter: 5/16in12mm Inner Diameter: 9/32in, Outer Diameter: 3/8in14mm Inner Diameter: 11/32in, Outer Diameter: 7/16in16mm Inner Diameter: 13/32in, Outer Diameter: 1/2in18mm Inner Diameter: 17/32in, Outer Diameter: 5/8in20mm Inner Diameter: 21/32in, Outer Diameter: 3/4in24mm Inner Diameter: 5/8in, Outer Diameter: 54/64in30mm Inner Diameter: 7/8in, Outer Diameter: 1in.Package List:8 x Bushing Guide2 x Locking Nut1 x Adapter1 x Storage Box